document.write(" <DIV id=img style='LEFT: 14px; POSITION: absolute; TOP: 41px'> ")
  document.write(" <a href='http://www.sxhmlyxx.com/Article/ShowClass.asp?ID=576' target=_blank> ")
  document.write(" <IMG src='/images/FlyBM.gif'  border=0></a> </DIV> ")
 
  var xPos = 20;
  var yPos = document.body.clientHeight;
  var step = 1;
  var delay = 30;
  var height = 0;
  var Hoffset = 0;
  var Woffset = 0;
  var yon = 0;
  var xon = 0;
  var pause = true;
  var interval;
  img.style.top = yPos;

  function changePos()
  {
      width = document.body.clientWidth;
      height = document.body.clientHeight;
      Hoffset = img.offsetHeight;
      Woffset = img.offsetWidth;
      img.style.left = xPos + document.body.scrollLeft;
      img.style.top = yPos + document.body.scrollTop;
      if(yon){yPos = yPos + step;}else{yPos = yPos - step;}
      if (yPos<0){yon = 1;yPos = 0;}
      if (yPos>=(height-Hoffset)) {yon = 0;yPos = (height - Hoffset);}
      if (xon){xPos = xPos + step;}else {xPos = xPos - step;}
      if (xPos < 0) {xon = 1;xPos = 0;}
      if (xPos >= (width - Woffset)) {xon = 0;xPos = (width - Woffset);}
  }

  function start()
  {
      img.visibility = 'visible';
      interval = setInterval('changePos()', delay);
  }

  start();